Usain bolt can run 100 m in 9.77s. if he ran this fast at a constant speed, how long will it take him to run a mile

How many molecules are present in 3 mols of silicon dioxide (sio2)?

Sawyer is studying diffraction. he draws a diagram of a plane wave to show how light waves travel. which best describes sawyer’s error? the wave fronts should be perpendicular to the direction in which the waves move. the arrow showing the direction of movement of the waves should be pointing to the left. the arrow showing the direction of movement of the waves should be pointing downward. the wave fronts should be both parallel and perpendicular to the direction in which the waves move.

Asystematic approach to problem solving is called a (an)